1 // { dg-add-options ieee } 2 3 // 1999-08-23 bkoz 4 5 // Copyright (C) 1999-2016 Free Software Foundation, Inc. 6 // 7 // This file is part of the GNU ISO C++ Library. This library is free 8 // software; you can redistribute it and/or modify it under the 9 // terms of the GNU General Public License as published by the 10 // Free Software Foundation; either version 3, or (at your option) 11 // any later version. 12 13 // This library is distributed in the hope that it will be useful, 14 // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 // GNU General Public License for more details. 17 18 // You should have received a copy of the GNU General Public License along 19 // with this library; see the file COPYING3. If not see 20 // <http://www.gnu.org/licenses/>. 21 22 // 18.2.1.1 template class numeric_limits 23 24 #include <limits> 25 #include <limits.h> 26 #include <float.h> 27 #include <cwchar> 28 #include <testsuite_hooks.h> 29 30 template<typename T> test_epsilon()31void test_epsilon() 32 { 33 bool test __attribute__((unused)) = true; 34 T epsilon = std::numeric_limits<T>::epsilon(); 35 T one = 1; 36 37 VERIFY( one != (one + epsilon) ); 38 } 39 main()40int main() 41 { 42 test_epsilon<float>(); 43 test_epsilon<double>(); 44 test_epsilon<long double>(); 45 46 return 0; 47 } 48